Flights from San Francisco to London Heathrow

Our cheapest offers for flights from San Francisco to London Heathrow

Here you can compare cheap flights from San Francisco (SFO) to London Heathrow (LHR) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to London Heathrow. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (LAX)
UA1506, UA0923
14h 10min
Return
04/16/26
1 Stopover (MUC)
LH2483, UA0195
15h 40min
United Airlines ?
$641
Best option
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (DFW)
BA5598, BA1531
13h 40min
Return
04/16/26
direct
BA0285
11h 05min
British Airways ?
$689
San Francisco
London Heathrow
Outbound
04/03/26
2 Stopovers (YYZ, YUL)
AC4067, AC0406, AC0864
27h 15min
Return
04/16/26
1 Stopover (FRA)
LH0921, LH9408
21h 30min
Air Canada
$674
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (LAX)
LH7498, LH9343
33h 49min
Return
04/16/26
1 Stopover (ZRH)
LX0327, LX0038
29h 30min
Lufthansa
$687
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (DFW)
IB4169, IB4206
13h 40min
Return
04/16/26
direct
IB3626
11h 05min
Iberia
$689
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (DFW)
IB4169, IB4206
13h 40min
Return
04/16/26
direct
IB3626
11h 05min
Iberia ?
$720
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (LAX)
UA1506, UA0923
14h 10min
Return
04/16/26
1 Stopover (MUC)
UA9230, UA8883
16h 10min
United Airlines ?
$725
San Francisco
London Heathrow
Outbound
04/03/26
1 Stopover (CPH)
SK0936, SK0505
15h 15min
Return
04/16/26
1 Stopover (CPH)
SK0500, SK0935
16h 00min
SAS Scandinavian Airlines ?
$752
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from San Francisco to London Heathrow

Favorite airline: United Airlines
73 % of bookings on this flight route are made with United Airlines, Aer Lingus and Air Canada.
United Airlines
31 %
Aer Lingus
28 %
Air Canada
14 %
Direct flights are more expensive
Direct flights on this route are $105.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
10h 25min
15h 35min
17h 50min
US$640
US$535
US$832
Favourite connection: via Dublin
The most popular route is via Dublin and is booked by 35 % of all travelers.
Route
bookings
1 stopover Dublin
15h 35min, from US$535
35 %
1 stopover New York - Newark Liberty International Airport, NJ
23h 30min, from US$597
22 %
Direct flights
10h 25min, from US$640
17 %

Important flight information

Flight information: San Francisco - London Heathrow

Roundtrip from US$641.00
Flight duration min. 10:15 / max. 10:35
Return flight duration min. 11:10/ max. 11:25
Distance 8625 km
Flights per week 47
Departure airport Airport San Francisco International Airport, CA (SFO)
Arrival airport Airport London Heathrow (LHR)
Destination country Flights to United Kingdom
Alternative routes to United Kingdom
Alternative flights to London Heathrow
Flight destinations with a similar price
Flight destinations with a similar price